Issue-7: json: cannot unmarshal number

* Replace int with float64
* Replace sweat drop emoji with droplet emoji
* Update screenshot

airgradient.go

@@ -11,24 +11,24 @@ const AIR_GRADIENT_API_URL = "https://api.airgradient.com/public/api/v1/location
 type AirGradientMeasures []struct {
 	LocationID         int       `json:"locationId"`
 	LocationName       string    `json:"locationName"`
-	Pm01               any       `json:"pm01"`
-	Pm02               int       `json:"pm02"`
-	Pm10               any       `json:"pm10"`
-	Pm003Count         any       `json:"pm003Count"`
+	Pm01               float64   `json:"pm01"`
+	Pm02               float64   `json:"pm02"`
+	Pm10               float64   `json:"pm10"`
+	Pm003Count         float64   `json:"pm003Count"`
 	Atmp               float64   `json:"atmp"`
-	Rhum               int       `json:"rhum"`
-	Rco2               int       `json:"rco2"`
+	Rhum               float64   `json:"rhum"`
+	Rco2               float64   `json:"rco2"`
 	Tvoc               float64   `json:"tvoc"`
-	Wifi               int       `json:"wifi"`
+	Wifi               float64   `json:"wifi"`
 	Timestamp          time.Time `json:"timestamp"`
 	LedMode            string    `json:"ledMode"`
-	LedCo2Threshold1   int       `json:"ledCo2Threshold1"`
-	LedCo2Threshold2   int       `json:"ledCo2Threshold2"`
-	LedCo2ThresholdEnd int       `json:"ledCo2ThresholdEnd"`
+	LedCo2Threshold1   float64   `json:"ledCo2Threshold1"`
+	LedCo2Threshold2   float64   `json:"ledCo2Threshold2"`
+	LedCo2ThresholdEnd float64   `json:"ledCo2ThresholdEnd"`
 	Serialno           string    `json:"serialno"`
-	FirmwareVersion    any       `json:"firmwareVersion"`
-	TvocIndex          int       `json:"tvocIndex"`
-	NoxIndex           int       `json:"noxIndex"`
+	FirmwareVersion    string    `json:"firmwareVersion"`
+	TvocIndex          float64   `json:"tvocIndex"`
+	NoxIndex           float64   `json:"noxIndex"`
 }
 
 func fetchMeasures(token string) ([]byte, error) {

main.go

@@ -71,7 +71,7 @@ func launched(app appkit.Application, delegate *appkit.ApplicationDelegate) {
 
 			// updates to the ui should happen on the main thread to avoid segfaults
 			dispatch.MainQueue().DispatchAsync(func() {
-				item.Button().SetTitle(fmt.Sprintf("🌡️ %.2f  💨 %d  💦 %d  🫧 %d",
+				item.Button().SetTitle(fmt.Sprintf("🌡️ %.2f  💨 %.0f  💧 %.1f  🫧 %.0f",
 					temperature,
 					airGradientMeasures[0].Pm02,
 					airGradientMeasures[0].Rhum,